Grade 11 Biology Evolution Chapter 7, 8, 9
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| Adaptation | show 🗑
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| Adaptive radiation | show 🗑
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| show | speciation in which a population is split into two or more isolated groups by a geographical barrier; also called geographical speciation
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| Analogous structure | show 🗑
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| show | selective pressure exerted by humans on populations in order to improve or modify particular desirable traits
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| show | the study of the past and present geographical distribution of species populations
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| Biotechnology | show 🗑
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| Bottleneck effect | show 🗑
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| show | the idea that catastrophes such as floods, diseases, and droughts periodically destroyed species living in a particular region, allowing species from neighbouring regions to repopulate the area
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| Convergent evolution | show 🗑
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| Descent with modification | show 🗑
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| show | natural selection that favours the phenotypes at one extreme over another, resulting in the distribution curve of phenotypes shifting in the direction of that extreme
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| Disruptive (diversifying) selection | show 🗑
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| show | a pattern of evolution in which species that were once similar to an ancestral species diverge, or become increasingly distinct
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| Ecological niche | show 🗑
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| show | the study of early, pre-birth stages of an organism’s development
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| Evolution | show 🗑
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| Extinct | show 🗑
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| show | the ability of an organism to produce viable offspring capable of surviving to the next generation
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| show | the remains and traces of past life that are found in sedimentary rock; it reveals the history of life on Earth and the kinds of organisms that were alive in the past
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| Founder effect | show 🗑
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| show | the net movement of alleles from one population to another due to the migration of individuals
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| show | the change in frequencies of alleles due to chance events in a breeding population
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| show | a model of evolution that views evolutionary change as slow and steady, before and after a divergence
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| show | structures that have similar structural elements and origin but may have a different function
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| Inheritance of acquired characteristics | show 🗑
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| show | a structural adaptation in which a harmless species resembles a harmful species in coloration or structure
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| Monoculture | show 🗑
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| show | a permanent change in the genetic material of an organism; the only source of new genetic variation
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| show | the process by which characteristics of a population change over many generations as organisms with heritable traits survive and reproduce, passing their traits to offspring
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| Non-random mating | show 🗑
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| Paleontology | show 🗑
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| Post-zygotic isolating mechanism | show 🗑
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| show | a barrier that either impedes mating between species or prevents fertilization of the eggs if individuals from different species attempt to mate; also called pre-fertilization barrier
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| Punctuated equilibrium | show 🗑
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| Selective advantage | show 🗑
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| show | environmental conditions that select for certain characteristics of individuals and select against other characteristics
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| Sexual selection | show 🗑
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| show | the formation of new species from existing species
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| Stabilizing selection | show 🗑
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| show | the idea that the organisms that are the fittest leave the most offspring, so those organisms win the struggle for survival; phrase coined by John Spencer
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| show | speciation in which populations within the same geographical areas diverge and become reproductively isolated
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| show | in science a theory is a set of principles that explain and predict phenomena. All theories in science are based on an immense amount of observed evidence
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| Theory of evolution by natural selection | show 🗑
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| Transitional fossil | show 🗑
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| Uniformitarianism | show 🗑
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| show | differences between individuals, which may be structural, functional, or physiological
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| Vestigial structure | show 🗑
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